George Gershwin agreed to compose something for the concert before he realized how little time he had to do it.

VOA: special.2009.02.15

If you go back to the time before that, we talked about this partnership game.

再往前回顾一下,我们之前还讲过合伙人的博弈

耶鲁公开课 - 博弈论课程节选

This is the first time I've ever done that before.

这是我第一次这么做。

I'm frustrated 实战 - SpeakingMax英语口语达人

the doctor said, "you should draw up a few general rules as guidance before you pass a second time through the dangers of youth.

VOA: special.2010.10.23

What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.

在这之前是很整洁的，之前最主要的用于空调或者冰箱的,物质是氨。

麻省理工公开课 - 固态化学导论课程节选

Before he became a power hitter, he had been among the best pitchers of his time.

VOA: special.2011.03.27

I want to spend some time on that until we talk about-- before we talk about development of the polio vaccine.

我想多花些时间讨论这个问题,在我们讨论,在我们讨论脊髓灰质炎疫苗的发展之前

耶鲁公开课 - 生物医学工程探索课程节选

The last time the governor saw his family was just before he returned to England.

VOA: special.2009.08.17

If you never meditate before, this is a wonderful opportunity to do it for the first time.

如果你从没冥想过，这是你们尝试的好机会。

哈佛公开课 - 幸福课课程节选

The best time is after the ground has frozen but before the coldest weather arrives.

VOA: special.2009.06.30

How would it strike you if you knew nothing about it, if you had never heard of it before, if you open up the covers of this book for the first time?

如果你对新约一无所知，如果你对新约为所未闻，如果这是你，第一次翻开新约，会有什么感觉？

耶鲁公开课 - 新约课程节选

It's hard all the time, and it typically gets harder before it gets easier."

VOA: special.2010.06.26

Excavations at Jericho and Ai indicate that both of these towns were ; laid waste at least 200 years before the probable time of Joshua; so there weren't even any walls in Jericho at the time of Joshua.

耶利哥和艾城的挖掘都显示这两个城镇,都在约书亚前200年就已被毁损;,因此在约书亚时期，耶利哥根本就没有城墙。

耶鲁公开课 - 旧约导论课程节选

Generally,the best time to prune is in late winter, before spring growth starts.

VOA: special.2009.10.06

If you see the pictures of Mike, especially here well before he had his surgery at the time he was about 30 skiing downhill.

如果看了迈克的照片，特别是这张他接受手术前的照片,就在他接受手术的时候，即他大约30岁左右时，他还在从事高山滑雪。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

And went on thinking... And I see Jim before me all the time;

VOA: special.2010.03.21

And then I'd wander in, we'd typically visit for the rest of that time before 7:30.

然后我就走进办公室，一般在7：30之前,都会一直谈话。

普林斯顿公开课 - 国际座谈会课程节选

She did this for some time before returning to the United States.

VOA: special.2010.04.25

The antiquity of a law alone is no justification for its usage. Aristotle seems to reject you might say Burkean conservatism long before the time.

法律的古老性不能作为其用法的借口,亚里士多德似乎事先拒绝,你可能会说柏克式的保守主义,古老与传统并不能。

耶鲁公开课 - 政治哲学导论课程节选

The best time to do this is before storage.

VOA: special.2009.11.30

So, now, the defenders have to do it, in a perfect situation, I am marching towards their corn crop, grain crop, at the time just before the grain is going to be harvested.

因此被侵方就要做出反应,制定完美的方案,我在庄稼即将成熟之前,会去掠夺他们的庄稼

耶鲁公开课 - 古希腊历史简介课程节选

On May fifteenth, just seventeen days after leaving New York, Captain Creesy wrote this in the Flying Cloud's log: "We have passed the Equator in two days less time than ever before.

VOA: special.2009.12.23

So there's two firms, just as there was before, and just as there was before--so the players are those two firms, and just as there was last time, they're producing an identical product.

现在有两个公司,就像之前一样,就像之前一样,局中人是这两个公司,就像上次一样,它们生产相同的某一产品

耶鲁公开课 - 博弈论课程节选

It's not the first time CSPI has threatened legal action against junk food makers -- and the strategy has worked before.

VOA: standard.2010.06.24

We never sell the wine before its time, something like that. On television, in different acting roles, he would take any worthless role in somebody's movie just because there was such a large fee, and he will pour that into his movies.

之前人们对这种酒闻所未闻，在电视上，在饰演,不同的角色时，他在一些电影中做不起眼的角色,因为这可以,赚到一大笔钱，然后可以投到自己的电影中。

麻省理工公开课 - 电影哲学课程节选

Geithner,who appeared on NBC's "Meet the Press" program, said it will take time before average Americans perceive economic improvements.

VOA: standard.2009.11.01

So supposed that I give you 16 elements to sort, well, following the logic before, the running time involved in sorting 16 elements is gonna be twice the running time 16 of sorting 8 elements, left half and right half plus 16 - and again, a little sanity check, 16 means-- just the merge steps, right?

现在要对16个元素进行排序，根据之前的逻辑，对16个元素排序,要花的时间是对8个元素排序所花时间的,2倍，分别用于左半部分和右半部分，再加上6,这里16是-,做合并的步数，对吗？

哈佛公开课 - 计算机科学课程节选

He recounts a phone call with his mother before taking the 200-meter gold in record time Thursday night.

VOA: standard.2009.08.21

You've got to spend the time to make sure that everything is well defined before you start trying to work out these problem More about the path. There are a couple ways you could go through that pass If I look at this smooth path here.

你要花时间确认,在你开始尝试解题前,切已经被很好地定义,关于路径还有些问题,你可以用两种不同的方式经过这条路径,看这条平滑的路径。

麻省理工公开课 - 热力学与动力学课程节选

And now we get the p orbitals, remember we want to fill up 1 orbital at a time before we double up, so we'll put one in the 2 p x, then one in the 2 p z, and then one in the 2 p y.

我们到了p轨道，记住在双倍填充之前,我们想要每次填充至一个轨道，所以我们在2px填充一个然后2pz填充一个，然后2py填充一个。

麻省理工公开课 - 化学原理课程节选